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"The move is subject to the Egyptian international agreeing personal terms and completing a medical examination."

Basel are thought to have been seeking around £12 million for Salah, and Chelsea were in a position to put in a higher offer for him as they prepare to sell Juan Mata to Manchester United for £37m.

It appears increasingly unlikely that Liverpool boss Brendan Rodgers will add to his squad before the transfer window shuts at the end of January.

Asked on Thursday about the prospect of bringing in Salah or anyone else, Rodgers said: "Nothing as of yet. There have obviously been targets that we have looked at, but there's nothing imminent."

Salah struck the equaliser when the Swiss champions earned a 2-1 win at Chelsea in the Champions League on September 18 and then got the only goal in a 1-0 victory at home to Jose Mourinho's side on November 26.

However, Basel failed to make it through the group and dropped into the Europa League, in which they will play Maccabi Tel Aviv over two legs in February.